Sunfire Wireless Reciever and Transmitter Kit for Dynamic Series Subwoofers You get this great product.... Sunfire - SDSWiTX Black 2.4GHz Wireless Transmitter. Plus, you get: Sunfire - SDSWiRX Black 2.4GHz Wireless Receiver Sure, you could snake wires under carpet, around doors  or worse, navigate a spiderinvested crawlspace or basement only to drill through the floor above. But there is a better way. All you need is a power outlet near the sub and you're ready for plugandplay bass with the freedom to move the subwoofer to any location in the room. Simply connect the transmitter module to you're A/V processor and the receiver to your subwoofer All you need is a power outlet near the sub and you're ready for plug-and-play bass  Connect up to 4 receivers and subs from a single transmitter